Application of Particle Trace Morphology and Sensitivity Analysis in Delineation of Drinking Water Protection Zone in the Luan River, North China
The appropriate division of underground drinking water source protection zones is a low-cost method of preventing water source pollution and ensuring a supply of safe drinking water. Based on FEFLOW, a groundwater flow model of large water sources was established for Luan River, North China. Trace l...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/22/3702 |
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| author | Xiaoyuan Li Jianxiu Li Wenzhong Wang Zhongshuang Cheng |
| author_facet | Xiaoyuan Li Jianxiu Li Wenzhong Wang Zhongshuang Cheng |
| author_sort | Xiaoyuan Li |
| collection | DOAJ |
| description | The appropriate division of underground drinking water source protection zones is a low-cost method of preventing water source pollution and ensuring a supply of safe drinking water. Based on FEFLOW, a groundwater flow model of large water sources was established for Luan River, North China. Trace lines of particle reverse migration for 100 and 1000 days were obtained by random walks. According to the trace morphology, the water sources in the riverside water source area were divided into four categories. The first- and second-grade protection areas were delimited by ArcGIS, with areas of 0.375 and 1.20 km<sup>2</sup>. The local and global sensitivity of the permeability coefficient (<i>K</i>) and effective porosity (<i>n<sub>e</sub></i>) effects on the area of groundwater protection zones were calculated. The area of the protection zones was positively correlated with <i>K</i> and negatively correlated with <i>n<sub>e</sub></i>. The variation in the protected zone caused by the simultaneous changes in <i>K</i> and <i>n<sub>e</sub></i> is the same as that of <i>n<sub>e</sub></i> alone, and the global sensitivity is closer to the local sensitivity of <i>n<sub>e</sub></i>. This indicates that <i>n<sub>e</sub></i> has a greater impact than <i>K</i> on the scope of groundwater protection zones. Moreover, global sensitivity is not simply a superposition of local sensitivity, and the interaction between parameters can reduce the effect of a parameter acting alone on the delineation of protection zones. This also shows that the global sensitivity is closer to the actual situation than the local sensitivity, thus providing a scientific basis for the delimitation and monitoring of water source protection zones. |
| first_indexed | 2024-03-09T17:55:16Z |
| format | Article |
| id | doaj.art-6933e89837dd4630a7bf683cfc5c4483 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T17:55:16Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-6933e89837dd4630a7bf683cfc5c44832023-11-24T10:21:36ZengMDPI AGWater2073-44412022-11-011422370210.3390/w14223702Application of Particle Trace Morphology and Sensitivity Analysis in Delineation of Drinking Water Protection Zone in the Luan River, North ChinaXiaoyuan Li0Jianxiu Li1Wenzhong Wang2Zhongshuang Cheng3Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaChina Water Huai Planning, Design and Researh Co., Ltd., Hefei 230000, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaThe appropriate division of underground drinking water source protection zones is a low-cost method of preventing water source pollution and ensuring a supply of safe drinking water. Based on FEFLOW, a groundwater flow model of large water sources was established for Luan River, North China. Trace lines of particle reverse migration for 100 and 1000 days were obtained by random walks. According to the trace morphology, the water sources in the riverside water source area were divided into four categories. The first- and second-grade protection areas were delimited by ArcGIS, with areas of 0.375 and 1.20 km<sup>2</sup>. The local and global sensitivity of the permeability coefficient (<i>K</i>) and effective porosity (<i>n<sub>e</sub></i>) effects on the area of groundwater protection zones were calculated. The area of the protection zones was positively correlated with <i>K</i> and negatively correlated with <i>n<sub>e</sub></i>. The variation in the protected zone caused by the simultaneous changes in <i>K</i> and <i>n<sub>e</sub></i> is the same as that of <i>n<sub>e</sub></i> alone, and the global sensitivity is closer to the local sensitivity of <i>n<sub>e</sub></i>. This indicates that <i>n<sub>e</sub></i> has a greater impact than <i>K</i> on the scope of groundwater protection zones. Moreover, global sensitivity is not simply a superposition of local sensitivity, and the interaction between parameters can reduce the effect of a parameter acting alone on the delineation of protection zones. This also shows that the global sensitivity is closer to the actual situation than the local sensitivity, thus providing a scientific basis for the delimitation and monitoring of water source protection zones.https://www.mdpi.com/2073-4441/14/22/3702groundwater protection zoneparticle tracesensitivity analysisChina |
| spellingShingle | Xiaoyuan Li Jianxiu Li Wenzhong Wang Zhongshuang Cheng Application of Particle Trace Morphology and Sensitivity Analysis in Delineation of Drinking Water Protection Zone in the Luan River, North China Water groundwater protection zone particle trace sensitivity analysis China |
| title | Application of Particle Trace Morphology and Sensitivity Analysis in Delineation of Drinking Water Protection Zone in the Luan River, North China |
| title_full | Application of Particle Trace Morphology and Sensitivity Analysis in Delineation of Drinking Water Protection Zone in the Luan River, North China |
| title_fullStr | Application of Particle Trace Morphology and Sensitivity Analysis in Delineation of Drinking Water Protection Zone in the Luan River, North China |
| title_full_unstemmed | Application of Particle Trace Morphology and Sensitivity Analysis in Delineation of Drinking Water Protection Zone in the Luan River, North China |
| title_short | Application of Particle Trace Morphology and Sensitivity Analysis in Delineation of Drinking Water Protection Zone in the Luan River, North China |
| title_sort | application of particle trace morphology and sensitivity analysis in delineation of drinking water protection zone in the luan river north china |
| topic | groundwater protection zone particle trace sensitivity analysis China |
| url | https://www.mdpi.com/2073-4441/14/22/3702 |
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